Chemical debridement
Chemicals that debride devitalised
tissue include topical antimicrobials
and honey, which can also be used for
this purpose (Thomas, 2010).
Honey is available on prescription in a
variety of formats, e.g. combined with
calcium alginate or in a gel format. It
is important to realise that the type
and amount of honey varies between
dressing products. In the presence of
wound exudate, the honey dilutes and
as a consequence the enzyme glucose
oxidase is activated and hydrogen
peroxide is produced. The hydrogen
peroxide component was thought to
work alongside the natural osomotic
pull of the honey to debride non-
viable tissue.
However, there is thought to be an
additional non-peroxide debriding
element to honey (Thomas, 2010).
Honey may appeal to patients due
their perception of the product as a
natural remedy. Following a review
of the literature, Gethin (2008)
recommends honey as an effective de-
sloughing agent for chronic wounds.
This is in opposition to a Cochrane
Review, which stated that there was
insufficient evidence to guide the
use of honey in wounds other than
superficial and partial thickness burns
(Jull et al, 2008).
Antimicrobial dressings are chosen for
their ability to debride and lower the
bacterial load in the wound bed. The
antiseptic agents that are incorporated
into antimicrobial wound dressings
include polyhexamethyl-biguanide
(PHMB), chlorhexadine, povidone
and cadexomer iodine, honey,
silver sulfadiazine, ionic silver and
Clinical
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